Mitra Djamal, Edi Sanjaya, Islahudin, Ramli
Vibration like an earthquake is a phenomenon of physics. The characteristics of these vibrations can be used as an early warning system so as to reduce the loss or damage caused by earthquakes. In this paper, we introduced a new type of low frequency 2D vibration sensor based on flat coil element that we have developed. Its working principle is based on position change of a seismic mass that put in front of a flat coil element. The flat coil is a part of a LC oscillator; therefore, the change of seismic mass position will change its resonance frequency. The results of measurements of low frequency vibration sensor in the direction of the x axis and y axis gives the frequency range between 0.2 to 1.0Hz. © 2012 American Institute of Physics.
Department of Physics, Institut Teknologi Bandung, Bandung 40116, Jl. Ganesa 10, Indonesia; Department of Physics, UIN Syarif Hidayatullah, Ciputat 15412, Jl. Ir.H. Djuanda 95, Indonesia; MTs NW Nurul Iman Kembang Kerang, Lb.Lombok, NTB, Jl. Raya Mataram, Indonesia; Department of Physics, Universitas Negeri Padang, Padang 25132, Jl. Prof. Hamka, Indonesia
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